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Table 3 Top frequent keywords significantly Granger-caused the COVID-19 positivity trends

From: Need of care in interpreting Google Trends-based COVID-19 infodemiological study results: potential risk of false-positivity

Keywords Total frequency Regions
AU CA GB IE IN JP SG US ZA
Loss of smell 9
Sense of smell 5 - - - -
Loss of taste 5 - - - -
Cough 5 - - - -
Runny nose 5 - - - -
Shortness of breath 5 - - - -
Sore 5 - - - -
Sore throat 5 - - - -
Stuffy nose 5 - - - -
Diarrhea 4 - - - - -
Headache 4 - - - - -
Pneumonia 4 - - - - -
  1. Detailed results of the keywords that have significant Granger-causality to the COVID-19 positivity trends, in the order of frequency across all the countries. Only keywords that were significant in 4 or more countries (out of 9) are shown. The check mark indicates that the keyword (in row) had significant Granger-causality in that country (in column)
  2. Abbreviations: AU Australia, CA Canada, GB Great Britain, IE Ireland, IN India, JP Japan, SG Singapore, US United States, ZA South Africa, FDR False discovery rate, VAR Vector autoregression